Quezon City is a highly urbanized city located in central Luzon, immediately northeast of Manila, in the National Capital Region of the Philippines. It is the largest city in terms of population and land area in Metro Manila, covering a total area of 161.11 square kilometers (62.20 sq mi) . The city is politically subdivided into six congressional districts, which represent the city in the Lower House of the Congress of the Philippines, and has 142 barangays under the City Government. The geography of Quezon City is characterized by undulating terrain, and the city is within the catchment area of five river systems – Marikina, Pasig, San Juan, Tullahan, and Meycauayan – along with their creeks and tributaries with a total length of almost 200 km (120 mi) . Quezon City is bounded by Rodriguez to the north, Marikina and San Mateo to the east, Pasig to the southeast, Mandaluyong and San Juan to the south, Manila to the southwest, and Caloocan and Valenzuela to the west and northwest. The city is home to the Philippines major broadcasting networks, and it is a hub for business and commerce, as a center for banking and finance, retailing, transportation, tourism, real estate, entertainment, new media, traditional media, telecommunications, advertising, legal services, accountancy, and more.